Jane and Tom Are Worried About Their Newborn Baby Who

Jane and Tom are worried about their newborn baby who has just begun to nurse,but chokes and turns blue whenever she is fed.Their baby most likely has a defect in her ________.

A) tongue muscles
B) soft palate
C) muscle in the upper-third of her esophagus
D) epiglottis
E) muscle in the lower two-thirds of her esophagus